#include "copyright.h"
#include "utility.h"
#include "dllist.h"
void traversal(DLList* testDLList);
void retraversal(DLList* testDLList);
void DLListDriver();
void GenerateRandomItemWithKeys(int N,DLList* list);
void RemoveItemFromHead(int N,DLList* list);
void MayBeYield(int flag);